Portions of a grille surround



FIG. 1 is a perspective view of portions of a grille surround showing our new design that are represented in illustration of a brushed metallic gray surface finish, all other portions of the grille surround and truck shown in broken lines are for illustrative purposes only and form no part of the claimed design; and,

FIG. 2 is a front view thereof.

The broken lines of the figures are included for the purposes of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for portions of a grille surround, as shown and described. 